Internetworking Terms: Diffusing Update Algorithm (DUAL)

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Diffusing Update Algorithm (DUAL)


Convergence algorithm used in Enhanced Interior Gateway Routing Protocol (EIGRP) that provides loop-free operation at every instant throughout a route computation. Allows routers involved in a topology change to synchronize at the same time, while not involving routers that are unaffected by the change. See also EIGRP.

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